Timeline for The poles of Feynman propagator in position space
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| May 5, 2015 at 10:57 | history | edited | zrysky | CC BY-SA 3.0 |
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| May 5, 2015 at 10:51 | history | edited | zrysky | CC BY-SA 3.0 |
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| May 5, 2015 at 10:00 | comment | added | zrysky | @EdenHarder Yes, because we only extend $t$ to complex plane, but $\mathbf{x}$ is always real. | |
| May 5, 2015 at 9:53 | comment | added | Eden Harder | I know, it's because $t = \pm (|{\bf x}|+i\epsilon)$ and $i|{\bf x}|^2$ is totally imaginary. | |
| May 5, 2015 at 9:49 | comment | added | Eden Harder | Thanks a lot! But why ${\rm Re}(ix^2) = {\rm Re}(it^2)$? Generally, ${\rm Re}(ix^2) = {\rm Re}(it^2-i|{\bf x}|^2)$. | |
| May 5, 2015 at 9:24 | history | bounty ended | Eden Harder | ||
| May 5, 2015 at 9:24 | vote | accept | Eden Harder | ||
| May 5, 2015 at 8:11 | review | First posts | |||
| May 5, 2015 at 8:24 | |||||
| May 5, 2015 at 8:10 | history | answered | zrysky | CC BY-SA 3.0 |